Which term describes a substance that poses risk to health, safety, and the environment and has had all useful characteristics depleted?

• A. Health Care
• B. Fungi
• C. Hazardous Material
• D. Hazardous Waste

Answer: (D)

Hazardous waste refers to a material that is dangerous to health, safety, or the environment and has lost its usefulness for its original purpose, so it must be disposed of. The idea is that the substance is no longer a usable product and has become waste, yet it remains hazardous and requires special handling and disposal under regulations to protect people and the environment.

Health care is not about a specific hazardous classification; fungi are a biological organism, not a waste or material descriptor; hazardous material describes a dangerous substance that may still be in use or stored, not necessarily waste. Therefore, hazardous waste best fits the scenario of a substance that poses risk and has had all useful characteristics depleted.